GNU bug report logs - #32703
echo_man_error

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Pádraig Brady <P <at> draigBrady.com>, Eric Blake <eblake <at> redhat.com>, 1064240043 <szq1064240043 <at> qq.com>, 32703 <at> debbugs.gnu.org
Subject: bug#32703: echo_man_error
Date: Sun, 16 Sep 2018 07:42:19 -0700

Pádraig Brady wrote:
>    Author: Jim Meyering<jim <at> meyering.net>
>    Date:   Thu Sep 25 12:58:50 1997 +0000
>      Make echo conform to POSIX.  By default, don't
>      interpret backslash escape sequences.
> 
> POSIX may have changed in the meantime, but POSIXLY_CORRECT
> was never used as a condition for enabling interpretation of escapes.

POSIX certainly did change in the meantime. In 1997 it was POSIX.2 (1992), 
whereas the requirements we're talking about weren't added until POSIX-2001. So 
the bug is that coreutils echo hasn't been upgraded to the new standard since 
2001 and nobody has reported this until now.

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